Home / 61,051.34-91,572.46-18,931.75

Finding the Fourth Proportional to 61,051.34, 91,572.46 and 18,931.75

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Solution

The fourth proportional to 61,051.34, 91,572.46 and 18,931.75 is: 28,396.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,051.34 : 91,572.46 = 18,931.75 : x
  2. Step 2: Convert to fraction form
    61,051.34/91,572.46 = 18,931.75/x
  3. Step 3: Cross multiply
    61,051.34x = 91,572.46 × 18,931.75
  4. Step 4: Simplify right side
    61,051.34x = 1,733,626,643.34
  5. Step 5: Solve for x
    x = 1,733,626,643.34/61,051.34
  6. Step 6: Final answer
    x = 28,396.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.